Default Template (as seen on this page)
This Three Column template is the same one that is used in the Product and Solution pages. It has the left navigation, main content in center and a right sidebar for Widgets. At the top of the page, users can insert a gallery. The gallery is not used on this example.

Full Width
This page template goes from left to right with no left nav or right sidebar.

Three Column
This Three Column template is the same one that is used in the Product and Solution pages. It has the left navigation, main content in center and a right sidebar for Widgets. At the top of the page, users can insert a gallery.

Two Column
Navigation in on the left, main content on right

Two Column – Right
This page template has no left nav, but has a right sidebar for widgets

How does the nav work on this page
The left navigation displays the parent/child pages of the current page. So here Page Templates is the parent, and each sub page is a child.